Home / 460,605.06-690,383.48-280,292.81

Finding the Fourth Proportional to 460,605.06, 690,383.48 and 280,292.81

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Solution

The fourth proportional to 460,605.06, 690,383.48 and 280,292.81 is: 420,120.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,605.06 : 690,383.48 = 280,292.81 : x
  2. Step 2: Convert to fraction form
    460,605.06/690,383.48 = 280,292.81/x
  3. Step 3: Cross multiply
    460,605.06x = 690,383.48 × 280,292.81
  4. Step 4: Simplify right side
    460,605.06x = 193,509,520,733.40
  5. Step 5: Solve for x
    x = 193,509,520,733.40/460,605.06
  6. Step 6: Final answer
    x = 420,120.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.